Mega Code Archive
Move or copy data from a Spark List control to an MX DataGrid control by drag and drop
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Code from Flex 4 Documentation "Using Adobe Flex 4".
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<!-- dragdrop\DandDListToDGSpark.mxml -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
xmlns:s="library://ns.adobe.com/flex/spark" xmlns:mx="library://ns.adobe.com/flex/mx"
creationComplete="initApp();">
<s:layout>
<s:VerticalLayout />
</s:layout>
<fx:Script>
import mx.events.DragEvent;
import mx.managers.DragManager;
import mx.core.DragSource;
import mx.collections.IList;
import mx.collections.ArrayCollection;
private function initApp():void {
srcList.dataProvider = new ArrayCollection([
{label:"First", data:"1"},
{label:"Second", data:"2"},
{label:"Third", data:"3"},
{label:"Fourth", data:"4"},
]);
destDG.dataProvider = new ArrayCollection([]);
}
private function dragDropHandler(event:DragEvent):void {
if (event.dragSource.hasFormat("itemsByIndex"))
{
// Explicitly handle the dragDrop event.
event.preventDefault();
// Since you are explicitly handling the dragDrop event,
// call hideDropFeedback(event) to have the drop target
// hide the drop indicator.
// The drop indicator is created
// automatically for the list controls by the built-in
// event handler for the dragOver event.
event.currentTarget.hideDropFeedback(event);
// Get drop target.
var dropTarget:DataGrid =DataGrid(event.currentTarget);
var itemsVector:Vector.<Object> =event.dragSource.dataForFormat('itemsByIndex') as Vector.<Object>;
var tempItem:Object ={ label: itemsVector[0].label,data: itemsVector[0].data,date: new Date()};
// Get the drop location in the destination.
var dropLoc:int = dropTarget.calculateDropIndex(event);
IList(dropTarget.dataProvider).addItemAt(tempItem, dropLoc);
}
}
</fx:Script>
<s:HGroup>
<s:List id="srcList" dragEnabled="true" dragMoveEnabled="true" />
<mx:DataGrid id="destDG" dropEnabled="true"
dragDrop="dragDropHandler(event);">
<mx:columns>
<mx:DataGridColumn dataField="label" />
<mx:DataGridColumn dataField="data" />
<mx:DataGridColumn dataField="date" />
</mx:columns>
</mx:DataGrid>
</s:HGroup>
<s:Button id="b1" label="Reset" click="initApp();" />
</s:Application>
]]>